On 3, Wikipedia says the Mozarabs were the Christians that continued to live under Muslim rule for centuries, not the emigrants.
And on 5/6, at first Muslims were at first allowed to stay. Then forced to convert to Christianity by law, not societal pressure, leading to the rebellion you source. And then finally their converted ancestors were still expelled from the country.
Yes, Mozarabs were allowed to stay but many of them fled to the northern christian kingdoms
> In 1126, a great number of Mozarabs were expelled to North Africa by the Almoravids. Other Mozarabs fled to Northern Iberia. This constituted the end of the Mozarabic culture in Al-Andalus. For a while, both in North Africa and in Northern Iberia, the Mozarabs managed to maintain their own separate cultural identity.
That's why there are several churches with mozarabic style in the north[1], for example.
>Yes, Mozarabs were allowed to stay but many of them fled to the northern christian kingdoms
Those that fled/were expelled were the ones who still stuck to Christianity after living under Muslim rule for around four centuries. Defining them as emigrants is ignoring the key part of their identity.
Your new source even says
>Formerly used for the whole of the Iberian peninsula, the term is now usually restricted, at least in architecture, to the south, with Repoblación art and architecture used for the north.
And on 5/6, at first Muslims were at first allowed to stay. Then forced to convert to Christianity by law, not societal pressure, leading to the rebellion you source. And then finally their converted ancestors were still expelled from the country.